Comments on Why Generalized BP Serves So Remarkably in 2-D Channels

Generalized belief propagation (GBP) algorithm has been shown recently to infer the a-posteriori probabilities of finite-state input two-dimensional (2D) Gaussian channels with memory in a practically accurate manner, thus enabling near-optimal estimation of the transmitted symbols and the Shannon-t...

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Hauptverfasser: Shental, O., Shental, N., Shamai, S., Kanter, I., Weiss, A.J., Weiss, Y.
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:Generalized belief propagation (GBP) algorithm has been shown recently to infer the a-posteriori probabilities of finite-state input two-dimensional (2D) Gaussian channels with memory in a practically accurate manner, thus enabling near-optimal estimation of the transmitted symbols and the Shannon-theoretic information rates. In this note, a rationalization of this excellent performance of GBP is addressed.
DOI:10.1109/ITA.2007.4357604